What is a generator and how is it used in PHP?
A generator is a function capable of producing a series of results. At the end of the series, it automatically starts from the first one again.
A generator is a simple iterator capable of producing a series of results. It has the same syntax as a function, except it uses "yield" instead of "return".
A generator is a simple iterator capable of producing a series of results. It has the same syntax as a function, except it uses "next" instead of "return".
A generator is a function that produces a series of random values for unit testing code.